Summary
Some cobalt(II), nickel(II), copper(II) and copper(I) complexes of 2-mercapto-5-methyl-1,3,4-thiadiazole (mttz) and 2,5-bis(methylmercapto)-1,3,4-thiadiazole (bmttz) have been prepared and studied by conductometric and magnetochemical methods and by electronic and i. r. spectroscopy. The complexes CoX2 · 2L (L=mttz, X=Cl, Br or I; L=bmttz, X=Br or I), CoCl2 · bmttz are pseudotetrahedral, and the complexes NiX2 · mttz (X=Cl or Br), NiCl2 · 1.3 bmttz, NiBr2 · 1.5 bmttz are pseudooctahedral. The complex Co3(OAc)2 · 4(mttz-H) · 2H2O has an undefinite constitution. The polynuclear complexes CuCl2 · 1.3 mttz and CuBr2 · 1.2 mttz contain presumably pseudotetrahedral chromophores, the chloride having a subnormal magnetic moment. The CuX2 · 2 bmttz (X=Cl, Br or NO3) complexes have a six coordination with bridging ligand molecules. In the CuX · 2 mttz (X=Cl, Br or ClO4) complexes the anions are coordinated, while in the CuClO4 · 2 bmttz complex the perchlorate anion is ionically bonded.
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Fabretti, A.C., Franchini, G.C. & Peyronel, G. Cobalt(II), nickel(II), copper(II) and copper(I) complexes of 2-mercapto-5-methyl-1,3,4-thiadiazole and 2,5-bis(methylmercapto)-1,3,4-thiadiazole. Transition Met Chem 7, 105–108 (1982). https://doi.org/10.1007/BF00618193
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DOI: https://doi.org/10.1007/BF00618193